March 25-27th Winter Storm

Preliminary Verification

WatchesOKX Performance

• POD = 100 %• Avg. Lead Time = 40 hrs• FAR = 0%• CSI = 1.00• Number of Watches: 16• Number of Events: 16• Watches with event: 16• Watches w/o event: 0

INTERNAL Goals• POD = 60%• CSI = 0.60• Avg. Lead Time = 30 Hours

WarningsOKX Performance

• POD = 100%• Avg. Lead Time = 27 hrs• FAR = 0%• CSI = 1.0• Number of Warnings: 23 • Number of Events: 23• Warnings with event: 23• Warnings w/o event: 0

National GPRA Goals• POD = 90%• Avg. Lead Time = 15 Hours• FAR = 33% (ER GPRA)

300/500 HPA

850 HPA

Surface

Radar

Anomalies

00z Feb 23rd GEFS MSLP Anomalies(4-5 Stds)

00z Feb 23rd GEFS Wind Anomalies (4-5 Stds)

00z 25th Nam MSLP Anomalies(4-5 Stds)

00z 25th NAM Wind Anomalies (5-6 stds)